Hi Bill,
You asked:
> All of these facts seem inconsistent. Are there two bolt patterns for
>TR250 fans out there? If so, I could swap my red fan with someone for a
>fan with Will's bolt pattern and be in good shape. What's going on
>here? Insight? Thoughts? Advice?
Well, as a matter of fact, after this discussion last week, I decided to
take a look at the TR fans at the swap meet at the car show last weekend.
As it turns out, there are two different "yellow" fans. There is a 13
blade fan that is the same as the red, late TR-6 fan that uses the spacer
and has the wide bolt pattern. There is also a seven bladed yellow fan
with smaller bolt pattern that does bolt up to the TR2/3/4 crank extension.
This is what I used on my TR-3 prior to fitting an aluminum extension
and elelctric fan. My understanding (which could well be wrong) is that
this seven bladed fan was from a TR-250, while the 13 blade fan (and spacer)
was from a TR-6; maybe someone else knows for sure.
Hope that helps,
R. John Lye
'59 TR-3A; '62 TR-4; '70 GT-6+
Palmyra, VA USA
rjl6n@Virginia.edu
http://avery.med.virginia.edu/~rjl6n/homepage.htm
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